Tacking-machine and work-positioning device therefor.



0. ASHTON.

TACKING MACHINE AND WORK POSITIONING DEVICETHEREFOR.

APPLICATION FILED DEC. 26, I912.

Patented Mar. 14, 1916.

a sHEETS-sHEET 1.

O- ASHTON.

TACKING MACHINE AND WORK POSITIONING DEVICE THEREFOR.

APPLICATION FILED DEC. 26. I912.

Patented Mar. 14, 1916.

3 SHEETS-SHEET 2- n1: COLUMBIA PLANOGRAPH co.. WASHINGTON, n. c.

0. ASHTON.

TACKING MACHINE AND WORK POSITIONING DEVICE THEREFOR.

APPLICATJON FILED 0Ec.26.1912.

1,175,041. Patented Mar. 14, 1916.

3 SHEETS-SHEET 3.

l WTA/ESS THE COLUMBIA PLANOGRAPH 00., WASHINGTON, D. c.

kirn'r erriots.

ORBELL ASHTON, OF SWAMPSCOTT, MASSACHUSETTS, ASSIG'NQl't T0 UNITED SHOE MACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CURl ORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Mar. id, 1316.

Application filed December 26. 1912. Serial No. 738,671.

To all whom it may concern:

Be it known that I, ORRELL AsirroN, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain Improvements in Tricking-Machines and ork-Positioning Devices T herefor, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of boots and shoes and, while the several features thereof are of more or less general utility, the invention is here shown as embodied in improvements upon the machine shown in my Patent No. 1,050,904, granted January 21, 1913, and in my co-pending application Ser. No. 624,983, filed May 4:, 1911.

The machine represented in that patent and application and herein improved includes devices by which it is adapted for several uses, as for example, for tacking inner-soles, or turn shoe soles, upon last bottoms, for inserting the heel end and the heel seat tacks in the shoe assembling operation, for lasting heel seats of turn shoes that have tacked heel seats and, with or without the aid of the grippers with which the machine is provided, for lasting and tacking the sides of turn shoes.

Important features of this invention are found in the novel construction, arrangement and provision for and mechanism to effect adjustment of work positioning devices with relation to the tack driver whereby the one machine may be employed for differently inserting tacks in the several operations above mentioned. As herein shown the work positioning devices include several parts to be used together in some instances and alternatively in other instances. These parts comprise a nozzle through which the driver reciprocates and which constitutes the guide for the tack while the tack is being driven and is adjustable in the direction of the driver movement to locations in which its lower end is either above the lower limit of the driver movement whereby clearance of a partially driven. tack from the nozzle is insured or is flush with the lower end of the driver movement or, it may be, is substantially below its limited movement; also a sole rest which extends from the body of the machine inwardly across the tacking line and is adjustable up and down into and out of working positions and is yieldingly held down into its working position; an edge rest below the acting face of which the sole rest normally extends but may be lifted by the pressure of the shoe to expose the edge rest; and, furthermore, these positioning devices include a special channel rest adapted by its engagement with the channel of a turn shoe sole to position the shoe laterally with relation to the tacker and also vertically with relation to the limit of the driver movement for causing a predetermined partial insertion of side lasting tacks to be effected in the between substance that is intermediate the channel and the shoulder of a turn sole.

From the foregoing it may be summarized that the illustrated machine includes a channel rest which serves to position the shoe vertically and laterally with relation to the tacker to get the tack into the between substance. One or more of these rests may be used in any particular machine within this invention.

The machine shown further includes connections from an adjusting device, which has the form of a rotatable cam, with the nozzle and also with the sole rest and edge rest by which the several adjustments of these parts may be effected and said rests maintained in adjusted position, or it may be, said nozzle, sole and edge rests moved into positions where they do not serve shoe resting functions.

The channel rest, which is mounted for movement into operative position when said sole and edge rests are out of operative position, has a special formation by which its shoe engaging end is located entirely on one lateral side of the tacker and is comparatively small and rounded, it being contemplated that the direction of the movement of the shoe in progressively tacking and lasting its'side shall be such that the end of the channel rest will be on that side of the driver toward which the tacking operation is progressing as distinguished from the side of the driver adjacent to the last inserting tack. This provides that the channel rest may be maintained in the channel and the shoe may slide with relation to it without a tack encountering the end of the channel rest. Means is provided, as in the earlier construction, for locking the channel rest 1;; and t 1e ri ers, with which it is associated in an upraised operative position and for unlocking them and permitting them to swing down to an inoperative position and, in accordance with a further feature of this invention, means is provided for checking the downward swing of the channel rest and its associated parts, which are relatively heavy, to prevent shock and danger of break age or disarrangement of these parts.

The several features of the invention will now be described in connection with the accompanying drawings and then more particularly pointed out in the claims which are not to be construed as limited to the, illustrated construction except as required by the definite terms of the claims.

Figure 1 is a front elevation of a machine embodying my invention; Fig. 2 is a perspective view of the work positioning mechanism and shows also the grippers; Fig. 3 is a side elevation of the machine"; Figs. 4, 5 and 6 are details showing the operation of the channel rest and its relation to the grippers; Fig. 7 is a view taken from the under side of the channel rest; Fig. 8 is a detail showing the position of the bottom and edge rests while the grippers are being used and the adjustment of the tacker nozzle for partial insertion of tacks as in side lasting; Fig. 9 shows the adjustment of the tacker nozzle for use in tacking on soles, the tacks being driven flush with the work; Fig. 10 shows theadjustment of the bottom rest and of the tacker nozzle for the work of assembling shoes, the tacks being left slightly projecting; Fig. 11 shows the adjustment of the nozzle and rests for use in driving the second assembling tack; Fig.

12 is a perspective detail of the sole and edge rests; Fig. 13 is 13-13 of Fig. 3.

The machine as a whole will be first described in order that the relation of the a section on the line improvements to other parts of the machine 1 may be best understood.

The frame 2 supports a cam shaft 4 which can be connected to the continuously run ning pulley 5 by a clutch controlled'by rod 6 and a treadle not shown. The shaft has a cam 8, Fig. 3, to oscillate a lever 10 to whichis pivoted the actuator 1.2 for the grippers. The grippers comprise an inner jaw 14 and an outer jaw 16 with which latter the actuator 12 has a detachable engagement, formed by a pocket in the jaw bar which receives a leg of the actuator to facilitate removal of the grippers to an inoperative down-turned position indicated by dotted lines in Fig. 3. The outer jaw slides in a right line over the inner jaw and by its downwardly inclined end grips the upper against the similarly inclined end. face of the inner jaw. Both jaws are guided for 'movement inwardly .and outwardly in an angle block 20.

The angle block 20 is the carrier for the channel rest 40 that constitutes thework positioning means to locate theshoe vertically and laterally with. relation to the tacker nozzle 80. This rest is used while tacking and lasting the sides of the shoe, if the grippers are employed. If the grippers are not to be employed the channel rest is made to give place to the alternative work positioning devices including the sole .rest 50 which may be seen above the jaws in Figs. 1, 2and 8 where it occupies its inoperative position. For exposing the rest 50 for use, as in Figs. 10 and 11, the carrier block 20 for the channel rest, together with said rest and the jaws, is mounted to swing downwardly and backwardly as indicated by dotted lines in Fig. 3. To this end the channel edge rest carrier 20 is pivoted to the frame at 22 and locked in its operative position by a spring-pressed bolt 24, see Fig. 2. This bolt is carried in a bearing in the lower end of the block 20 and can enter a recess in the frame when the rest 40 is up in position for use. A push bolt 25 working in the same recess in the frame can be made to eject the bolt 24: whereupon the block 20 and parts carried by it, which altogether are rather heavy, will swing down'by gravity to the position shown in dotted lines in Fig. 3. As they swing down the spring pressed bolt 24 engages frictionally a face 23 of the frame which checks free falling and this face of the frame is inclined toward the plane in which the channel rest is falling so as to press the bolt backwardlyfor gradually checking the falling movement preventing rebound of the carrier 7 it is by continued advance of theupper jaw by actuator 12 after the stop is reached that the opening is effected. The pivot stud 29 of the lever 10 supports astrong spiral spring 30 that is under tension and is arranged to hold the upper end of the lever against the cam 8 and to turn the lower end backwardly as fast as the cam allows. This spring thereby effects inward movement of the upper jaw 16 while the spring 26 holds the lower jaw forward until the stock is gripped whereupon both jaws move inwardly together to pull the upper which is gripped between them only by he for e of spring-26. The jaws would close together by the contraction of the spring 26 when they are disconnected from the actuator 12 for removal to their inoperative position if 7 this spring were left free to act. To prevent this a pivoted latch 32is mounted (in the block 20, Fig. 2, with its front end in position to swing behind the jaw 16 'and a spring 33 is provided to press it in that direction. While the grippers are in position for use the latch is held out of the path of the jaw 16 by a bolt 34 the head of which is grooved toreceive the end of a plate 35 that is carried by a stud 36 and a spring 38 on said stud tends to hold the upper end of plate 35 and the bolt 34 away from the latch. The plate is extended downwardly and its lower end engages a groove in the head of the push bolt 25 by which the locking bolt 24 is forced inwardly to allow the grippers to swing down as above described. The push bolt 25 is the operating means by which the grippers are unlocked to swing down and by which the bolt 34 is ret'acted to allow latch 32 to swing behind jaw 16. As soon as the grippers swing down the latch 32 is carried out of the path of bolt 34 and is retained by its spring 33 in position to prevent the closing of the jaws while they are away from the actuator 12. l/Vhen the grippers are returned to position for use the relatively strong spring back of bolt 24 forces that bolt and bolt 25 to the left and turns plate 35 in the direction to project bolt 34 against the latch 32 and withdraw it from interference with operation of jaw 16 by the actuator 12. The upper jaw 16 is forked to straddle the nozzle of the tacker and the lower jaw is preferably also forked. This gripper mechanism may be as more fully described in the patent above referred to and no novelty is claimed therefor in this application.

The channel rest 40 with which, and the other devices for positioning the shoe relatively to the tacker, this invention has to do, is arranged to engage the shoe sole in the inner channel or against the inner side of the lipor rib of the inner-sole for holding the shoe vertically and laterally. The channel rest 40 is movable from a work receiving position, shown in Fig. 3, backwardly into a position for rigidly resting the shoe laterally, and to this end the rest is carried by a sliding rod 42 movable in bearings that depend from its carrier block 20. A spring 44 presses the rod and rest outwardly and allows inward movement by the pressure of the shoe against the restto a position determined by a shoulder 43 where the tack will be inserted at the desired position in the sole, it being important to locate lasting tacks in turn shoes in the between substance intermediate the channel and the feather of the sole, that is, in predetermined relation to the channel. It is important that the shoe be moved outwardly again in proper time relation to the outward movement of the gripper aws effected by the actuator 12 in order that the jaw 14 shall not through a cam 45 that engages a pin 47 on the end of a lever 46 pivoted on the frame and connected at its lower end to a plunger 48 which is thereby reciprocated in alinement with a rod 42 and forces the channel rest and shoe outwardly in advance of the outward movement of the gripper.

The channel rest 40 is pivoted to turn down about a horizontal pivot 41 by which it is connected to the head of the rod 42. This allows the channel engaging end of the rest to swing downwardly, as in Fi 3, under action of a spring 37, a distance limited by a stop 39 that engages the rear end of the rest, as shown in Fig. 2, to facilitate proper engagement of the channel lip with the rest. Substantial advantage in the direction of convenient use of the machine is secured by arranging this channel rest to occupy a shoe receiving position in advance of and below its shoe resting position. This may be appreciated by comparing the relative position of the machine parts and the shoein the successive stages represented in Figs. 3, 4, 5 and 6. If the rest were to occupy a shoe receiving position as high as that in which it locates the shoe for the correct partial insertion of a side lasting tack. difliculty would be encountered in properly engaging the shoe therewith.

The sole rest 50 is mounted on a lever 52 pivoted to the machine frame at 54, Fig. 3. The lever is provided with a depending arm 56, Fig. 3, carrying an adjustable stop 53 for contact with the machine frame to limit the lower position of the lever 52. The vertical position of sole rest 50 relatively to the tacker is controlled by an adjusting device in the form of a normally stationary cam 60 rotatable on a stud 61 which cam is connected with the lever 52 by a bell crank lever 62 and a link 64. Obviously, rotary adjustment of the cam 60 will cause the cam track thereof to act through the bell crank lever 62 and cause it to raise and lower the rest 50.

For supporting an edge rest 68 an arm 66 is pivoted to the lever 52 at 67 and carries the edge rest 68 adjustably upon its outer end. The edge rest is arranged for vertical movement between the attaching prongs of he rest 50, Fig. 12. The link 64 is attached to the lever 52 by a pin and slot connection and the pin rests on a spring 70 which, acting against the lower end of the slot, holds the pin against the upper end thereof. The

link 64 is directly and positively connected to the arm 66 by the same pin. By this convstruction it will be seen that the edge rest tively stationary edge rest 68 will come into operative relation below the lower face of the rest 50.

Preferably the position of the tacker nozzle relatively to the driver is changed according to the nature of the work, and in the illustrated embodiment of the present invention these changes are arranged to be effected at the same time with the changesin position of the shoe rest. The stud 61 upon which the cam 60 is mounted carries an eccentric disk 76 which is rotatably mounted in a block 77 guidedin the slide 78 which carries at its lower end the nozzle 80 of the tacker. By inspection of Figs. 8, 9, l0 and 11, it will be seen that as the cam 60 is rotated to adjust the position of the rest 68 the tacker nozzle will be adjusted vertically. Normally as seen in Fig. 8, the nozzle is somewhat above the end of the driver when in its lowest position and the first quarter turn of the cam 60 is utilized to bring the nozzle down to the plane of the limit of the driver movement without affecting the position of the rests 50, 68, Fig. 9. The parts are now in proper adjustment for use of the machine in such work as tacking on soles, the tacks being driven flush with the work.

The cam 60 is held in its various positions of adjustment by a spring bolt 82, Fig. l, which is carried by the cam and is arranged. to engage any one of series of holes formed in the head of the machine to hold the cam in its various positions of adjustment. Further rotation of the cam from the position of Fig. 9 brings an abrupt portion of the cam path to the lever 62 and causes the rests 50, 68

to be lowered into operative position, Fig. 10.

At the same time the nozzle is lowered further to a position slightly below the lower limit of the driver so that the heel end tack is left projecting only far enough to enable it to be pulled easily without projecting far enough to be very liable to injure another shoe. A further movement of the cam 60, Fig. 11, to a position 180 from its original position lowers the nozzle 80 still further, the rests 50, 68 having normally the same position as in Fig. 10. The machine may now be used for tacking the ends of the counter, the rest 68, when exposed by elevation of the rest 50.

by pressure of the shoe against it, Fig. 11, serving as an abutment against which the shoe is pressed to iorce the end portlon of the counter into engagement with the last before the tack is driven through the counter and the upper-to hold them in place.

The machine is also adapted to side last ing'shoes where it is desirable merely to wipe in the stock, by movement of the shoe along the rest 50 until rest 68 is engaged, and to place a partially driven tack at a predetermined distance from the edge of the last. This arrangement is particularly adapted for lasting the sides of turn shoes, the edge rest 68 being adjustable to obtain the same distance of the tack from the edge of the last as provided for by the channel rest 40 so as to insure that the tack is driven into the between substance so as not to interfere with the channel guide of the sewing machine.

Having explained the nature of this in vention and described a preferred embodiment thereof, l claim as new and desire to secure by Letters Patent of the United States.

1. A machine of the class described having, in combination, a tacker, a work rest additional to. the nozzle, a cam, connections betweenthe cam and the rest for'adjusting the rest substantially in the direction of the tack driving movement relatively to I the tacker nozzle, and operating and locking means for adjusting the cam and retaining the work rest in certain definite positions required for different tacking operations for which the machine is adapted.

2. A machine of the class described having, in combination, a driver, a nozzle inclosing the driver and movable relatively thereto, a work rest having an opening through which the driver acts, and a single means for adjusting simultaneously the positions of the nozzle and the rest rela tively to the lower limit of the movement of the driver.

3. A machine of the class described having, in'combination, a driver, a nozzle inclosing the driver and movable relatively thereto, a .work rest through which the driver acts, and a single means capable of one adjustment to shift the nozzle and of another adjustment to shift the work rest.

4:. A. machine of the class described having, in combination, a tacker comprising a nozzle, a sole rest having an opening therein, and anedge rest movable through the sole rest and normally positioned above the lower face thereof.

5.1%, machine of the class described having, in combination, a tacker comprising a nozzle, a sole rest having an opening therein, an edge rest movable through said opening and normally positioned above the lower face thereof, and means for adjusting the position of the rests relatively to the nozzle.

.6. A machine of the class described having, in combination, a tacker comprising'a nozzle, a sole rest having an opening, an

thereof, means for adjusting the position of the rests relatively to the nozzle,- and yielding means for permitting elevation of the sole rest by the shoe to expose the edge rest for contact with the shoe.

7. A machine of the class described having, in combination, a tacker, a sole rest, an edge rest, and means for normally holding the rests in parallel planes and permitting relative movement of the rests by the shoe presented against one of them.

8. A machine of the class described having, in combination, a tacker comprising a driver, a tack holding and work engaging nozzle arranged for bodily adjustment longitudinally of the driver to bring the end of the nozzle beyond the limit of movement of the driver so that when the work is' presented against the nozzle a tack will be only partially driven, and additional means for eilecting such adjustment of the nozzle.

9. A machine of the class described having in combination, a nozzle, an edge rest, a sole rest having an opening through which the nozzle and the edge rest may be moved for adjustment, means for adjusting the sole rest relatively to the nozzle, and means permitting the pressure of the work against the sole rest to move it above the plane of the edge rest.

10. A machine of the class described having, in combination, a tacker having a driver and a nozzle, a work rest for positioning the work below the nozzle, and a single media-"- nism for adjusting simultaneously the positions of the nozzle and the rest relatively'to the driver for different kinds of work.

11. A machine of the class described having, in combination, a tacker comprising a nozzle, a work rest for the work, below the nozzle, and means for adjusting the relative positions of said nozzle and rest so that the work may be held up against either as a work rest.

12. A machine of the class described having, in combination, a tacker comprising a nozzle, a work rest for the work below the nozzle, and means for adjusting the relative positions of said nozzle and rest so that either or both may be used as work rests against which the work is upheld.

13. A machine of the class described having, in combination, a driver, a nozzle movable longitudinally of the driver, a work rest movable into various positions above and below the nozzle, and means for moving first the nozzle downwardly and then the rest downwardly.

14. A machine of the class described having, in combination, a driver, a nozzle movable longitudinally of the driver, a Work rest movable into various positions above and below the nozzle, and means for simultaneously moving the nozzle and the rest downwardly, said means being constructed to move the rest faster than the nozzle.

l 15. A machine of the class described having, in combination, a tacker including a driver and a nozzle through which the tack is driven, and a channel rest constructed and arranged relatively to the driver and nozzle to engage the channel of turn shoe sole exclusively on one lateral side of the driver path whereby the shoe may be fed laterally toward the opposite side of the driver path while guided by the end face or said rest without interference from the last driven tack.

16. A machine of the class described having, in combination, a tacker including a driver and a nozzle through which the tack is driven, and a channel rest constructed and arranged relatively to thedriver and nozzle to'engage the channel of a turn shoe sole, said channel rest being vertically movable and normally occupying a depressed shoe receiving position from which it can be raised by pressure of the shoe into the tack receiving position for the shoe.

17. A machine of the class described having, in combination, a tacker including a driver and a nozzle through which the tack is driven, and a channel rest constructed and arranged relatively to the driver and nozzle to engage the channel of a turn shoe sole, said rest comprising a rod 42, the blade AU pivoted thereto, the springs 37 and 44 holdingthe blade depressed and projected into shoe receiving position and yielding to permit the shoe to be guided by the rest into tack receiving position.

18. A machine of the class described having, in combination, a tacker including a driver having a fixed vertical path and a fixed nozzle through which the tack is driven, and two rests each mounted for movement into and out of operative position and each adapted to be used alternatively to position a shoe vertically and laterally relatively to the tack driver, one of said rests being constructed and arranged to position the shoe by engagement with the channel of the shoe sole and the other being constructed and arranged to position the shoe by engagement with the upper that extends over the edge and over the feather of the shoe sole.

19. A machine of the class described having, in combination, a tacker including a driver and a nozzle through which the tack is driven, and a rest extending from the body of the machine outwardly across the edge of the shoe and beyond the driver path and normally occupying an upraised inoperative position and means for depressing it to an operative position where movement of the shoe under it may be made to wipe the upper into position to be fastened and hold the upper in suitable tack receiving relation to the tacker nozzle.

20. A machine of the class described having, in combination, a tacker including a driver and a nozzle through which the tack is driven, a shoe bottom rest adapted to engage the upper on the shoebottom, and

sure of the shoe, and an edge rest rendered eli'ective to position the shoe laterally for the reception of a tack during each raising of the bottom rest. i

22. A machine of the class described having, in combination, a tacker including a driver and a nozzle through which the tack is driven, a shoe bottom rest pivoted to the body of the machine and extending outwardly toward the driver, adjusting means by which said rest may be shifted from an upraised inoperative position to a depressed position below the level of the lower limit of the driver movement, and means for yieldingly holding the rest in depressed position to require compacting pressure to be Copies of this patent may be obtained for five cents each, by addressing the in a shoereceiving position from which it i must be lifted in order to present a shoe to the tacker, and an edge rest normally shielded by the bottomrest and exposedto action when-said bottom rest is raised.

7 241. A machine of the class described, having, in combination, a tacker including a driver and a nozzle through which the tack isdriven, a shoe rest, adjusting means yieldingly connected therewith by which the rest is located in an operative position with capacity to yield in response to, pressure of the shoe, and'a stop 58 in cooperation with which the adjusting means may by further movement be made to renderthe rest rigid against pressure of the shoe. 7 7

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

Witnesses:

NORMAN C. HUssEY, ELMER B. GRUsH.

Washington, I). C.

ORRELL ASHTON.

Commissioner of Patents, 

